#include <iostream>
using namespace std;
class USBDevice 
{
	long m_id;
public:
	USBDevice(long  id);
	long getID() ;
};
class NetworkDevice
{
	long m_id;
public:
	NetworkDevice(long id);
	long getID() ;
};
class WirelessAdaptor: public USBDevice, public NetworkDevice
{
public:
	WirelessAdaptor(long uid, long nid):USBDevice(uid), NetworkDevice(nid){}
};
